CVE-2026-16578

HIGH CVSS 3.1: 7.5 EPSS 0.29%
Updated Aug 10, 2026
WordPress
Parameter Value
CVSS 7.5 (HIGH)
Affected Versions before 1.4.0
Type CWE-200 (Information Exposure), CWE-200 Information Exposure
Vendor WordPress
Public PoC No

The Admin Safety Guard — Login Security, Limit Logins, 2FA & Brute Force Protection WordPress plugin before 1.4.0 does not perform any capability check on one of its REST API endpoints, allowing unauthenticated attackers to retrieve the full list of registered users including their usernames, email addresses, roles, and two-factor authentication enrollment status.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v3.1

Vulnerable Products

unknown:admin safety guard — login security, limit logins, 2fa & brute force protection